图标命名规范

Technical Q&A QA1686 App Icons on iPad and iPhone

Q: How are the icon files in my application bundle used on iPad and iPhone? A: Below are guidelines for handling icon files for iPhone-only apps, iPad-only apps, and universal apps. IMPORTANT: Icons marked with "Required" must be supplied in your application bundle. iPhone-only Apps Include the following in your application's Resources group in the Xcode project: Table 1 : iPhone-only apps icon requirements. Image Size (px) File Name Used For Required Status Notes 512x512 iTunesArtwork Ad Hoc iTunes Optional but recommended File should be in png format, but name it without the .png extension 57x57 Icon.png App Store and Home screen on iPhone/iPod touch Required <None> 114x114 [email protected] Home screen for iPhone 4 High Resolution Optional but recommended <None> 72x72 Icon-72.png Home screen for iPad compatibility Optional but recommended <None> 29x29 Icon-Small.png Spotlight and Settings Optional but recommended <None> 50x50 Icon-Small-50.png Spotlight for iPad compatibility Recommended if you have a Settings bundle, otherwise optional but recommended <None> 58x58 [email protected] Spotlight and Settings for iPhone 4 High Resolution Recommended if you have a Settings bundle, otherwise optional but recommended <None> Your Resources group should look similar to Figure 1: Figure 1: Add files to Resources group Except for iTunesArtWork icon, list the names of each of these files in the Icon files entry in the Info.plist, in the order shown in the table. Follow the steps in "Add Icon files in Info.plist" section below. See Figure 4. Back to Top iPad-only Apps Include the following in your application's Resources group in the Xcode project: Table 2 : iPad-only apps icon requirements. Image Size (px) File Name Used For Required Status Notes 512x512 iTunesArtwork Ad Hoc iTunes Optional but recommended File should be in png format, but name it without the .png extension 72x72 Icon-72.png App Store and Home screen on iPad Required <None> 50x50 Icon-Small-50.png Spotlight on iPad Optional but recommended <None> 29x29 Icon-Small.png Settings on iPad Recommended if you have a Settings bundle, otherwise optional but recommended <None> Except for iTunesArtWork icon, list the names of each of these files in the Icon files entry in the Info.plist, in the order shown in the table. Follow the steps in "Add Icon files in Info.plist" section below. See Figure 5. Back to Top Universal Apps Include the following in your application's Resources group in the Xcode project: Table 3 : Universal apps icon requirements. Image Size (px) File Name Used For Required Status Notes 512x512 iTunesArtwork Ad Hoc iTunes Optional but recommended File should be in png format, but name it without the .png extension 57x57 Icon.png App Store and the Home screen on iPhone/iPod touch Required <None> 114x114 [email protected] Home screen for iPhone 4 High Resolution Optional but recommended <None> 72x72 Icon-72.png App Store and Home screen on iPad Required <None> 29x29 Icon-Small.png Settings on iPad and iPhone, and Spotlight on iPhone Recommended if you have a Settings bundle, otherwise optional but recommended <None> 50x50 Icon-Small-50.png Spotlight on iPad Optional but recommended <None> 58x58 [email protected] Spotlight and Settings for iPhone 4 High Resolution Recommended if you have a Settings bundle, otherwise optional but recommended <None> Except for iTunesArtWork icon, list the names of each of these files in the Icon files entry in the Info.plist, in the order shown in the table. Follow the steps in "Add Icon files in Info.plist" section below. See Figure 4. Back to Top Add Icon files in Info.plist To add the Icon files entry you will need to manually edit your Info.plist. Open your Info.plist in Xcode, and locate the "Icon file" entry. Click on the plus (+) button at the end of the entry to make a new key entry. as shown in Figure 2. Figure 2: Add a new entry under "Icon file" key Then, type "Icon files" in the key column (notice the "s" added), or choose "Icon files" from the drop down list, as shown in Figure 3. Figure 3: Add "Icon files" key in Info.plist Next, turn down the disclosure triangle on "Icon files" and add the entries for the icons for your application, as shown in Figure 4 and Figure 5: Figure 4: Add icon file entries for iPhone-only or Universal apps. Figure 5: Add entries for iPad icon files. Note: If you don't provide one of the listed optional icons, the system will automatically scale one of your existing icons to an appropriate size. However, it is strongly recommended that your application supply all the icons listed with specific sizes needed. Back to Top Document Revision History Date Notes 2010-07-14 Fixed outdated "Add Icon files in Info.plist" section. 2010-07-12 Updated for iOS 4 requirements. 2010-04-09 New document that explains how the icon files in an application bundle are used on iPad and iPhone.